import mitt from 'mitt'; class EventEmitter { constructor() { this.emitter = mitt(); } on(eventName, handler) { this.emitter.on(eventName, handler); } off(eventName, handler) { this.emitter.off(eventName, handler); } emit(eventName, event) { this.emitter.emit(eventName, event); } removeAllListeners() { this.emitter.all.clear(); } } export default EventEmitter;